Not really what you want, but as a work around you could search for wiki:1 views:0 (the views removes answers from the results list) and then use the newest tab - the results you want are at the top of the list (in terms of pages), but obviously results that you don't want will still be returned on later pages.
–
DMA57361Feb 17 '11 at 12:40

@DMA's solution is currently the only in-engine method of doing it through the site. There is no way to mechanically filter the search by any specific date element, although there is a request formerly tagged ninjas that asks for such functionality. The exact date was October 14th, by the way.
–
Grace Note♦Feb 17 '11 at 13:38